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Genetic Testing in Detection of Late-Onset Hearing Loss (SoundGene)
Utility of Genetic Testing in Detection of Late-Onset Hearing Loss
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Two major limitations of existing audiometric newborn hearing screening programs are their inability to detect forms of deafness that are not expressed at birth and the low compliance with obtaining recommended audiologic confirmation and/or follow-up. Molecular genetic tests on blood spots from all newborns will identify those at risk for the most frequent causes of late-onset hearing loss and to add these infants to the group who should receive continued audiologic monitoring.
The specific aims of this project are to:
- Demonstrate the utility of detecting four potentially important causes of delayed onset hearing loss by molecular tests at birth, which may be missed by current audiometric screening tests.
- Document the frequency, clinical and genetic characteristics of hearing loss associated with each condition.
Dried blood spots (DBS) on filter paper will be obtained and be used for this project with parental informed consent from 6,000 newborn infants at approximately 25 hospitals. Pediatrix Screening, a subsidiary of Pediatrix Medical Group with long experience in high throughput neonatal testing, will perform genetic testing on the samples. The four genetic and environmental forms of deafness to be studied include:
Prenatal/congenital cytomegalovirus (CMV) infection
-Detecting the presence of CMV viral DNA in dried blood spots.
Connexin Deafness - GJB2 and GJB6 mutations
- Cx26 35delG, Cx26 235delC, Cx26 167delT, Cx26 M34T, and Cx30 large deletion.(Under sublicense with Athena Diagnostics, Inc: United States Patent Numbers: 5,998,147 and 6,485,908 and patents pending)
Pendred Syndrome - SLC26A mutations
- L236P, 1001 +1G>A, T416P, E384G
- Mitochondrial Mutations - T961C, T961G, G951A, 961 delT+C(n)Ins, G7444A, A7445G, A7445C.
Studietype
Inschrijving (Werkelijk)
Contacten en locaties
Studie Locaties
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Kansas
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Topeka, Kansas, Verenigde Staten, 66604
- Stormont-Vail HealthCare
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Ohio
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Dayton, Ohio, Verenigde Staten, 45409
- Miami Valley Hospital
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Oklahoma
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Oklahoma City, Oklahoma, Verenigde Staten, 73112
- Integris Baptist Medical Center
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Documentation of informed consent
- Inborn
- Ability to do ABR (auditory brainstem response screen technology) screening test on all participants
- Age at enrollment less than 14 days or less than or equal to 336 hours (Birth date is day 0)
- Gestational age > = 34 0/7 weeks and above. (Late preterm infants and term infants)
- No major anomalies
- Ability to obtain blood sample prior to administration of any blood product transfusion
- Subjects' parents or legal guardian willing to provide follow-up data on their child. They will need to provide a telephone contact number and address for follow-up procedures
Exclusion Criteria:
- Older than 14 days of age or 336 hours
- Receipt of a blood product prior to the ability to obtain blood sample for genetic testing (SoundGene panel)
- Any major congenital anomalies. (chromosomal abnormalities, cyanotic congenital heart disease, gastroschisis, omphalocele, diaphragmatic hernia, or other major gastrointestinal anomalies, major neurological injury or anomaly, and multiple congenital anomalies)
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Gail Lim, ARNP, Pediatrix
- Studie stoel: Zhili Lin, MD, PhD, Pediatrix Screening
- Studie stoel: Reese H Clark, MD, Pediatrix
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- PDX-001-07
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